thank you for taking my call. they are saying president obama did not know. but eric cantor knew ahead of time and he didn't tell anybody. maybe the president did not know about this. shouldn't eric cantor have told congress about this? guest: i do not know how much he was told. a national security issue involving petraeus and no more details. he went back to the fbi about it. it is not necessarily his job to investigate allegations like that. usa" writes's work -- guest: it is important for any cover-up to be exposed. there was a potential for compromise and that is something that should be brought out. in the old days, before there was oversight, there were all kinds of terrible abuses going on. the press did not reveal these things. the fbi under j. edgar hoover was blackmailing members of .ongress, illegal wiretapping the cia was giving lsd to some other employees. the cia was doing foolish things to try to get castro's beard to fall off. you end up filing the law and people's constitutional rights but you also lose focus. that is what we saw in many case